Heat-distributing device for gas-ranges.



W. A. SCHOENHAAR.

HEAT DISTRIBUTING DEVICE PoR GAS RANGES.

APPLIUATION FILED JUNE 14,1912.

1,048,355. Patented 1360.24, 1912'.

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W. A. SCHOENHAAR.

HEAT DISTRIBUTING DEVICE FOR GAS RANGBS.

APPLICATION FILED JUNB14,1912.

Patented Dec 24, 1912.

1,048,355. i I l NI/ENTOR l WITNESSES I a @diam/mr commun I'LnNoule/mn cxx. wAsmNmuN, n. c.

UNITED STATES PATENT OFFICE.

WILLIAM A. SCHOENHAAR, OF WILMINGTON, DELAWARE.

HEAT-DISTRIBUTING DEVICE FOR GAS-RANGES.

To all whom 'it may concern.'

Be it known that I, ViLLiAM A. SCHOEN- HAAR, of Wilmington, in the county of Newcastle and State of Delaware, have invented certain new and useful Improvements in I'Ieat-Distributing Devices for Gras-Ranges; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

This invention is a novel heat distributing or controlling device especially designed for use with oil or gas ranges, and the object of the invention is to enable the heat from the burner to be easily controlled, so that the heat will be conserved and supplied more equally to the obj ect being heated or cooked; thus preventing the burning of utensils, or of food being cooked, by unequal distribution of the heat applied thereto; or which might result from direct application of the hot gases from the burner.

I will describe the invention with reference to the accompanying drawings which illustrate a heat distributing device or attachment embodying the invention, and in the claims I have set forth the novel features and combinations of elements for which I desire protection.

In said drawings-Figure 1 is a top plan view of the complete heat distributing and regulating device with the valve ring adjusted to direct all the heat to the center thereof. Fig. 2 is a similar view with the damper adjusted to distribute the heat. Fig.

`3 is a view of the device with the valve ring removed. Fig. 4 is a transverse vertical section through the device in position above the burner. Fig. 5 is a View of the valve ring dgtached.

The device comprises preferably a frame l which may be of any desired contour but is shown as rectangular. Said frame is provided with internal lugs 1fl upon which rests a removable baille plate 2 which when the device is in operative position will come directly over the burner of the stove, see Fig. 4. This baflie plate 2 may have its corners cut, as indicated at 2a, forming openings 2b, through which openings the hot gases from the burner pass above the baille plate 2; and said plate is preferably provided on its under side with depending delecting ribs or Specification of Letters Patent.

Application filed June 14, 1912.

Patented Dec. 24, 1912.

Serial No. 703,656.

flanges 2 which tend to direct the hot gases toward the openings 2b.

The frame l is provided above the baiiie plate 2 with shoulders 1b upon which is supported a regulating or damper plate 3, having a central passage or opening 3" and around this central passage an annular series of openings 3b. Upon the upper face of the plate 3 and adjacent the openings are upwardly projecting ribs 3, which serve as utensil supporting devices and the spaces between the ribs serve as passages for the hot gases. At the corners of the plate 3 are upstanding ribs 3".

Exterior to the openings 3* and on the upper side of the plate are curved ribs 3 which serve to guide, and prevent lateral displacement of, a rotatorially adjustable valve ring 4 which is provided with inwardly projecting widened valve portions 4n (separated by recesses 4b) which when the ring is adjusted to the position shown in Fig. 1 will cover the openings 3b in plate 3; and when the ring is in the position indicated in Fig. 2 the openings 3b will be uncovered. The valve ring is also provided on its pe-v riphery with a lug 4c which is adapted to engage the ends of adjacent ribs 3c to limit the rotfary adjustment of the ring. Of course this valve ring may be adjusted to any desired position intermediate the positions indicated in Figs. 1 and 2.

The novel device is adapted to be placed over an ordinary gas or oil or vapor burner, indicated at 6 in Figs. 3 and 4. In Fig. 4, 5 represents the top of an ordinary gas range provided with depending lugs 5 upon which the frame 1 is supported. The frame 1 may be made ofany desired shapeV to suit any standard make of stove; so that it can be placed on an ordinary stove over the burner.; and when the device is usedthe grating customarily placed over the burner should be removed.

When all the parts of the device are in position as indicated in Figs. 2 and 4, the hot gases will pass from the burner beneath battle plate 2 and through the openings 2b to and beneath the plate 3 and will pass out through the central opening 3 in plate 3 if the valve ring 4 be closed as in Figs. 1 and 4; or will pass through both the central opening and the openings 3b if the valve ring 4 be adjusted as indicated in Fig. 2.

In Fig. 4L the arrows in full lines indicate the course of the hot gases from the burner to the central opening 3a when the outer passages 3b are closed, as in Fig. l; while the arrows shown in dotted lines in Figl indicate the direction taken by the ho-t gases when the passages 3b are open, as indicated in F ig. 2.

Nith this device a vessel can be supported above the. burner and the hot gases can be distributed 'practically uniformly beneath the bottom of such vessel if it is large, or concentrated under the center thereof if it is small. lll/Then used for broiling the valve ring should be adjusted until the desired equal distribution of hot gases is obtained. The ribs 3e serve to support utensils above the surface of the plate 3, and allow the gases to be distributed uniformly under said utensil.

If it is desired to heat sad irons without direct contactwith the hotV gases the plate 3 with ring l can be removed from the frame, see Fig. 3, and the irons can then be set directly upon the plate 2.

What I claim is:

l. An attachment for gas ranges comprising a frame; a baille plate therein; a damper plate above and spaced from the baille plate having an annular series of openings for the passage of gases, and upstanding flanges on its upper face, and an annular valve having radially projecting portions adapted to close the openings, substantially as described.

2. In combination, a frame; a baille plate in said frame adapted to direct the hot gases outwardly from the burner, a damper plate in the frame above and spaced from the baffle Plate provided with a central opening and an annular series of openings around the central opening, and a valve for regulating the openings in said damper plate.

3. In combination, a frame, a baille plate in said frame so shaped as to leave openings for the passage of hot gases near its outer edge; a damper plate in the frame, above and spaced from the baille plate, provided with an annular series of openings and upstandmg ribs on its upper side; and a ring valve upon said damper plate adapted to regulate the passage of gases through said openings.

4. An attachment for gas ranges, comprising a frame, a baffle plate removably supported in said frame; a damper plate in the frame above and spaced from the baffle plate having a central opening and an annular series of openings around the central opening for the passage of gases, and a ring valve o-n said plate having inwardly projecting portions adapted to close the openings when the valve is adjusted in proper position, substantially as described.

5. An attachment for gas ranges, comprising a frame, a baifle Plate in said frame having depending flanges to divert the hot gases; a damper plate in the frame above and spaced from the baille plate and having an annular series of openings for the passage of gases and upstanding flanges on its upper face, and a ring valve guided by said flanges and adapted to close the openings in the damper plate when the valve adjusted in proper position, substantially as described.

6. An attachment for gas ranges, comprising a frame provided with lugs, a baille plate in said frame cut away at its corners and having depending flanges to divert the hot gases; a damper plate removably supported in the frame above and spaced from the baffle plate and having a central opening and an annular series of openings around the central opening for the passage of gases, and upstanding flanges intermediate the openings on its upper face, and a ring valve on said damper plate having inwardly projecting portions adapted to close the openings in said damper plate when the valve is adjusted in proper position, substantially as described.

In testimony that I claim the foregoing as my own, I afliX my signature in presence of two witnesses.

WILLIAM A. SCHOENHAAR.

Witnesses JOHN B. KINEGER, Sanna GLUCKMAN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

